OTOY Forums

Posted: **Fri Oct 04, 2024 9:06 pm**

Hello. I'm using OctaneRender plugin for Blender v29.14 with my GeForce RTX 4090.

At our sun source, 100k spp (samples per pixel) at Path Tracing (PT) kernel - 540p vs 4320p:

4320p is much better caustics than 540p.

But 4320p is ~39x longer render time than 540p but 4320p is 64x higher resolution screen than 540p. Therefore, 4320p has 1.6x more performance efficiency.

Best regards.

Posted: **Fri Nov 29, 2024 11:01 am**

What kernel did you use ?
From what I have seen, photon tracing is far quicker for caustics rendering.

Posted: **Fri Nov 29, 2024 8:49 pm**

pixym wrote:What kernel did you use ?

PT is path tracing.

From what I have seen, photon tracing is far quicker for caustics rendering.

I knew this kernel but unfortunately, Photon can't render any *variable* caustics on glossy floor and/or ceiling and/or wall with the roughness of less than +/-0.4 - learn Variable caustics (new): Path Tracing vs Photon Tracing.

Posted: **Fri Nov 29, 2024 8:51 pm**

My bad, I did not even notice « PT » in the title

OTOY Forums

Caustics test - 100k spp both 540p and 4320p using PT kernel

Caustics test - 100k spp both 540p and 4320p using PT kernel

Re: Caustics test - 100k spp both 540p and 4320p using PT

Re: Caustics test - 100k spp both 540p and 4320p using PT

Re: Caustics test - 100k spp both 540p and 4320p using PT kernel